Wilson Cloud Machines for Portable Use
- 1 December 1936
- journal article
- conference paper
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 7 (12) , 471-478
- https://doi.org/10.1063/1.1752066
Abstract
Two new forms of Wilson cloud apparatus, developed for stratosphere balloon flights and suitable for portable use, are described. The machines are of light weight, require only small amounts of electric power, and are arranged for optional control by Geiger-Müller counters. Both machines employ baffles for removing turbulence from the cloud chamber; one uses a metal bellows, but no diaphragm; the other uses a thin rubber diaphragm and a bellows pump. Vacuum tube circuits control the timing of events connected with the expansion cycle. Stereophotographs are taken with flash bulbs, or with a spark illuminator that uses only 10 watts of power from an a.c. supply.This publication has 15 references indexed in Scilit:
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